Folding a Circle into a Julia Set [video]

Article linked from the video description: http://www.karlsims.com/julia.html

Cool. I haven't seen this explanation before.

Shameless plug for an interactive application I made some time ago for creating fractals like the Julia set via functional iteration:

http://notmatthancock.github.io/software/func-iter/

Exploring how to do the same thing for the Mandelbrot Set:

https://github.com/timhutton/mandelstir